Originally posted by: Vilius

Hi,

AIX system detects 24Gb memory out of 32Gb.
Where should I start troubleshooting to solve/diagnose this issue ?

thanks
Vilius
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Originally posted by: tony.evans

What kind of system? Is it an LPAR? Dedicated hardware? What model? etc.
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Originally posted by: Vilius

Hi,

Dedicated machine.
POWER5 machine, model 9133-55A (p5 55A)

Vilius
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Originally posted by: MarkTaylor

You might want to explain in more detail what you are seeing and where .. i.e. Why do you think you have 32GB ? and where do you see this 32GB specified, then where do you see 24GB etc ..

I am thinking you have 32GB installed on your system but only 24GB activated ? CuOD ?

Rgds
Mark Taylor
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Originally posted by: Vilius

Hi,

Two identical machines were bought with 32Gb of memory specified.
One of them shows(lsattr -E -l mem0) 32Gb another 24Gb, I must provide the reason why it is so.

Vilius
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Originally posted by: grukrz1

You could also open ASMI and check for memory deallocation. Check also for system events on HMC. When defect memory dimms are detected system automatically deallocates them and you don't see all memory.

Af far as I remeber in the past for some models (eg. 570?) there was a bug that after firmware upgrade cuod activation codes had to be installed again.

http://www-912.ibm.com/pod/pod

But maybe 32GB in your system is total size of memory which your system can have installed but phisically you have 24GB? So maybe you can buy additional 8GB and install it in the box without purchasing new activation codes???
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Originally posted by: Vilius

Hi,

I've just checked using ASMI, and looks like I have 8Gb of memory deconfigured for reason "Predictive (E6)".

Of corse I can configure that memory, but could someone explain what that error above means ?

thanks
Vilius
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Originally posted by: grukrz1

check for historic events in HMC service focal point. I think when there were too many memory errors logged for your system, the affected dimms were probably deconfigured and should be replaced.... anyhow I think you should call IBM support.
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